Winterization is a purification step in the production of concentrates. It involves removing undesirable fats, waxes, and lipids from an extract to make it purer and cleaner-tasting. The name comes from the fact that it involves working with cold temperatures.
How does Winterization work?
The extract is dissolved in alcohol and chilled significantly – hence "winter". In the cold, fats and waxes clump together and can be filtered out. What remains is a purified solution, from which the alcohol is then removed. The result is a concentrate with fewer by-products.
Why is Winterization useful?
- Purer taste – Fats and waxes can cloud the flavor.
- Better consistency – a purified extract is more uniform.
- Higher purity – fewer by-products in the final product.
Winterization in a broader context
Winterization is typically a step in the professional processing of extracts such as BHO. As with all solvent-based processes, this belongs in professional, expert hands. Handling solvents is dangerous and legally regulated – we describe the process here for understanding only, not as an instruction.
Frequently Asked Questions
Why is it called Winterization?
Because the extract is heavily cooled to make fats and waxes flocculate.
Does the concentrate lose active ingredients in the process?
The goal is primarily to remove fats and waxes. If performed cleanly, the desired substances largely remain.
Is Winterization something for home use?
No – handling solvents is dangerous and belongs in professional processing.
Does every concentrate need Winterization?
No. Solvent-free concentrates like Rosin typically do not undergo this step.
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